Home / 1,221,505.14-1,685,681.38-677,651.70

Finding the Fourth Proportional to 1,221,505.14, 1,685,681.38 and 677,651.70

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Solution

The fourth proportional to 1,221,505.14, 1,685,681.38 and 677,651.70 is: 935,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,505.14 : 1,685,681.38 = 677,651.70 : x
  2. Step 2: Convert to fraction form
    1,221,505.14/1,685,681.38 = 677,651.70/x
  3. Step 3: Cross multiply
    1,221,505.14x = 1,685,681.38 × 677,651.70
  4. Step 4: Simplify right side
    1,221,505.14x = 1,142,304,852,815.35
  5. Step 5: Solve for x
    x = 1,142,304,852,815.35/1,221,505.14
  6. Step 6: Final answer
    x = 935,161.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.